Cooling unit



l2, W. SODEMANN COOLING UNIT Filed NOV. 22, 1930 l Z8 n ml-mwA l f l Z7 /N VEA/ro e: WML/AM 5006 mA/N.

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Patented Apr. l2, 1932 PATENT OFFICE WILLIAM SODEMANN, F ST. LOUIS, MISSOURI COOLING 'UNIT Application filed Novembe 22', 1930. serial No. 497,392.

The object of my invention is to lnake a cooling unit to be used in ofiices and homes. A more specific object is-to make a vcooling unit in the form o f a fixture or a piece of 6 furniture. A more specific object is to makea unit for coolingr air in a room or enclosure. The air at room temperature is drawn into the fixture over cooling coils by means of a centrifugal fan and blown into the room in its cooled condition. By this means, the humidity in the air may be also controlled within certain limits. In the drawings a fixture known as 'a grandfathers clock is shown. Applicant does not desire to be limited to this form of fixture. This device may be incorporated in any other type of fixture used in the office or home, such as a desk, table, bookcase7 etc.

The invention may be made of few and simple parts that lend themselves readily to multiple product-ion, and may be easily installed in ordinary fixtures.

With these and other objects in View, Amy invention has relation to certain novel feaf turcs of construction and arrangement of parts as will be hereinafter more fully described, pointed out in the claim and illustrated in the drawings in which Fig. 1 is a side elevation partially in section. Fig. 2 is a front elevation. i F ig. 3 is a sectional elevation taken on the line 3 3. of Fig. 1l I Numeral 4 designates the fixture generally. 5 which may have the -base 5.,' the front wall 6 and the rear wall 7, and the side walls 8'. The base and the walls thus far described form an enclosure or cabinet 9. In the side walls 8 are positioned the perforated plates 10. Numeral I1 ldesignates the'topof the fixture, which has the beveled face 12 fon the front portion and the beveled faces 13 on the sideportions. A Numeral 14 designatesthe portion of the 5 upper front face of the fixture. Numeral 15 designates a. perforated *plate positioned in the upper front face off the fixture. The

front wall 6 has the set backs 1b and 17.'

The vertical wall portion 18 connects the inner ends of the set backs 16 and 17. Thus for a cabinet of the configuration shown in the drawings has been described. lNumerals 19 designate vertical pillars connected atv their lower ends in the set backs 16 and at their upper ends in the set bac-'ks 17. These pillars 19 are simply for the purpose of ornamentation. In the vertical wall portion 18 a panel such as 20 may be formed. Numeral 21 designates a cooling coil secured in any conventional manner in the lower part of the cabinet 9. Thepipe connections for the'ingress and egress of the refrigerant are shown at 22 and 23. Numeral 24 designates an electric motor, which is secured in the upper portion of the fixture 4 by means ofthe brackets 25 and 26. The bracket 25is secured to the rear wall '1 and the bracket 26 is secured toA the beveled face 12. The motor is so positioned that its armature is in a vertical plane. Numeral 27 designates a centrifugal fan. which is secured to the free end of the armature of the electric motor 24, in such manner that it is immediately behind the perforated plate 15. Numeral 28 designates a. frusto-conical element, secured to the rear wall and the upperfront face 14 and to the centrifugalfan 27. Numeral 29 designates a conical element secured 4tothe rear A ture is positioned to be drawn from the room near the floor through the perforated plates 10 over the cooling coils 21 and upwardly through the fixture ,in the direction o f the arrows through the centrifugal fan 27', as

'previously described. In this manner a circulation of air is produced through the fixture. The air', as is seen. is taken at room temperature ne'ar'the fioor of the room, cooled by the cooling coil 21 -and blown into the room at the lower temperature through the perforated plate 15.

Naturally the lowering of the temperature of the air lowers its saturation point, so that 5 if the temperature is-lowered too greatly and blown into the room, the air reaching the room would be too humid and in extremecases would precipitate moisture. This is not desirable. It may be desirable to increase the 1 humidity of the air in the room, but not to such an extent. v

Owing to the ,travel of the air from the cooling coil 21 upwardly to the centrifugal fan 27, its temperature is swfliciently raised,

' 15 although a slight amount, so that when the air is blown through the perforated plate l5 its relative humidity'is lowered' proportionately. It is understood that thevconical element 28 prevents the air from passing upwardly to the electric motor 24 and the frusto-conicaLelement 29 prevents the air from ,"striking the centrifugal fan 27 at any `other point other than'its middle.

The fixture is portable and may be positioned anywhere where the electric motor -24 may be operated and a refrigerant may be su lied to the cooling coil 21.

umeral 30 designates a drip pan placed in the bottom of thebas'e 5 tocatch and hold 3 the precipitated moisture that drops from the cooling coil 21. Numeral 31 designates a Ypipe and coils attached to the drip pan 30, so that the water accumulated in the drip pan 30 may be periodically drawn olf. 35 What I claimv is: l

A cooling unit having a cabinet, a cooling coil positioned in said cabinet and means for 4 the ingress and egress of a refrigerant to said cooling coil, perforated plates positioned o in said cabinet, an electric motor secured in said fixture ata distance from said cooling coil, a centrifugal fan operativel connected to said electric motor, a perforate late positioned in said fixture immediately 1n front of said centrifugal fan, a frusto-conical element secured in said fixture so as tolimit the path of travel of air in said fixture to the central portion of said centrifugal fan.

In testimony whereof I aflix my signature.

vWILLIAM SODEMANN. 

